From Dyes to Digital: A Scientific Reconstruction of Early Colors

The growing interest in early films highlights the need for their preservation and digital restoration. Scientific methods are essential for analyzing historical coloring techniques and key characteristics for both physical conservation and digital reproduction. This study applies colorimetric analysis to two early nitrate-based 35mm films—Voleurs de bijoux mystifiés (1906) and Satan fait la noce (1907)—to examine imbibition and au pochoir coloring methods. Spectral transmittance measurements enabled preliminary dye identification, while colorimetric data informed an accurate digital restoration. This approach aims to (1) expand research on film dyes characterization and (2) establish a material-based method for digital color restoration. By reducing handling of analogue materials, it minimizes deterioration risks, ensuring long-term preservation while maintaining accessibility for study and appreciation.